670142720 has 288 divisors, whose sum is σ = 1928489472. Its totient is φ = 220594176.

The previous prime is 670142713. The next prime is 670142723. The reversal of 670142720 is 27241076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670142723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6506189 + ... + 6506291.

It is an arithmetic number, because the mean of its divisors is an integer number (6696144).

Almost surely, 2^670142720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670142720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964244736).

670142720 is an abundant number, since it is smaller than the sum of its proper divisors (1258346752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670142720 is a wasteful number, since it uses less digits than its factorization.

670142720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 670142720 is about 25887.1149416075. The cubic root of 670142720 is about 875.0961396405.

Adding to 670142720 its reverse (27241076), we get a palindrome (697383796).

The spelling of 670142720 in words is "six hundred seventy million, one hundred forty-two thousand, seven hundred twenty".